1. Any person who believes that an architect or a professional engineer or a professional land surveyor or a professional landscape architect has acted or failed to act so that his or her license or certificate of authority should, pursuant to the provisions of this chapter, be suspended or revoked, or who believes that any applicant for a license or certificate of authority pursuant to the provisions of this chapter is not entitled to a license or a certificate of authority, may file a written affidavit with the executive director of the board which the affiant shall sign and swear to and in which the affiant shall clearly set forth the reasons for the affiant’s charge or charges that the license or certificate of an architect or professional engineer or professional land surveyor or professional landscape architect should be suspended or revoked or not renewed or that a license or certificate should not be issued to an applicant.

2. If the affidavit so filed does not contain statements of fact which if true would authorize, pursuant to the provisions of this chapter, suspension or revocation of the accused’s license or certificate, or does not contain statements of fact which if true would authorize, pursuant to the provisions of this chapter, the refusal of the renewal of an existing license or certificate or the refusal of a license or certificate to an applicant, the board shall either dismiss the charge or charges or, within its discretion, cause an investigation to be made of the charges contained in the affidavit, after which investigation the board shall either dismiss the charge or charges or proceed against the accused by written complaint as provided in subsection 3 of this section.

3. If the affidavit contains statements of fact which if true would authorize pursuant to the provisions of this chapter the revocation or suspension of an accused’s license or certificate, the board shall cause an investigation to be made of the charge or charges contained in the affidavit and unless the investigation discloses the falsity of the facts upon which the charge or charges in the affidavit are based, the board shall file with and in the administrative hearing commission a written complaint against the accused setting forth the cause or causes for which the accused’s license or certificate of authority should be suspended or revoked. Thereafter, the board shall be governed by and shall proceed in accordance with the provisions of chapter 621.

4. If the charges contained in the affidavit filed with the board would constitute a cause or causes for which pursuant to the provisions of this chapter an accused’s license or certificate of authority should not be renewed or a cause or causes for which pursuant to the provisions of this chapter a certificate should not be issued, the board shall cause an investigation to be made of the charge or charges and unless the investigation discloses the falsity of the facts upon which the charge or charges contained in the affidavit are based, the board shall refuse to permit an applicant to be examined upon the applicant’s qualifications for licensure or shall refuse to issue or renew a license or certificate of authority, as the case may require.

5. The provisions of this section shall not be so construed as to prevent the board on its own initiative from instituting and conducting investigations and based thereon to make written complaints in and to the administrative hearing commission.

6. If for any reason the provisions of chapter 621 become inapplicable to the board, then, and in that event, the board shall proceed to charge, adjudicate and otherwise act in accordance with the provisions of chapter 536.